10. TROPIDONOTUS. 203 
of yellow dots close together on the suture between the parietal 
shields ; lower parts olive or grey, uniform or spotted or marbled 
with black. 
Total length 770 millim. ; tail 170. 
North America west of the Rocky Mountains, 
«13 (V. 163; C. Banff, Rocky Mountains. = Prof. OC. Eigen- 
9). -}. 
b. d (V. 168; C. 72). Near Wales Cafion, Pueblo T. D. A. erell, 
a ‘ Colorado, 6000- Esq. [P. 
eet. 
e. d (V. 175; C. 86). Kansas. 
d. g (V. 172; C.87). Washington Territory. 
irs ig 3 (V.167, ww Sumass Prairies, British Boundary Commis- 
. ?, 70), hgr. (V V. Columbia. sion. 
S04: 18s, 159 ; 
ie 2 09, *), & ye. (V 
7,162; C. 81). 
ate .(V.161; C. 77). Vancouver Island. Col. Hawkins [C.}. 
no ty. 165; 0. 73). Victoria. Dr. Brown [C.}. 
o,p. Hgr. g (V. 167; N. Orca Island, Gulf of Lords of the ‘Ad- 
2 mae 9 (V. 166; Georgia. miralty [P.]. 
5) 
-r. 3 (V. 166, 172; Tia Juana, San Diego Co., Prof.C. Eigenmann 
4 . 87, ?). California. tH [C.]. = 
3. Tropidonotus chrysocephalus. 
npeeee chrysocephala, Cope, Proc. Am. Philos. Soc. xxii. 1884, 
Pp. tho. ; 
Eye large. Rostral broader than deep; internasals as long as 
broad, a little shorter than the prefrontals; frontal narrow ; loreal 
deeper than long ; one pre-and three postoculars ; temporals 142; 
eight upper labials, fourth and fifth entering the eye. Scales in 17 
rows, all strongly keeled. Ventrals 145-151; anal entire; sub- 
caudals 71-81. Head yellow or brown; a large black nuchal spot ; 
no dorsal stripe ; a* lateral series of light spots, or a whitish stripe 
along the second row of scales may be present; ventrals olive, with 
or without black bases, or entirely black. _ 
Total length 450 millim. ; tail 135. 
South Mexico. 
a-c. ¢ (V. 151, 142; Omilteme, Guerrero, Mr. H. H. Smith [C.}. 
CG. 81, 79) & yg. 8000 ft. F. D. G 
(V. 145; C. na me es 
d, 2 (V. 148; C.71). Amula, Guerrero, 8000 ft. Mr. H. re ca 
ie} 
ee 
4, Tropidonotus scaliger. 
Tropidonotus scaliger, Jan, Arch. Zool. Anut. Phys. iii. 1865, par 
— scalaris, Dugés, La Naturaleza, (2) i. 1588, p. 129, pl. 
g. 17 
Head short; eye moderate. Rostral broader than deep, just 
“a 
et. 
ee a a Ee ew As} ey 
